Home / 990,410.88-1,366,851.60-560,766.72

Finding the Fourth Proportional to 990,410.88, 1,366,851.60 and 560,766.72

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Solution

The fourth proportional to 990,410.88, 1,366,851.60 and 560,766.72 is: 773,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,410.88 : 1,366,851.60 = 560,766.72 : x
  2. Step 2: Convert to fraction form
    990,410.88/1,366,851.60 = 560,766.72/x
  3. Step 3: Cross multiply
    990,410.88x = 1,366,851.60 × 560,766.72
  4. Step 4: Simplify right side
    990,410.88x = 766,484,888,458.75
  5. Step 5: Solve for x
    x = 766,484,888,458.75/990,410.88
  6. Step 6: Final answer
    x = 773,905.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.